软件资料库
将来,我估计要换台电脑,但是有一对使用频率很低但是容易忘记的软件,这里来记录一下
PDF叠加
将两个PDF叠加起来,效果如下图所示。用它的主要原因是Goodnote导出的PDF会让原本识别出来的中文乱码,将笔迹单独导出并与原文件叠加可以实现效果,而且不会出现乱码

这里可以使用python库PyPDF4实现,首先在命令行进行安装
pip install PyPDF4
然后新建一个py代码文件,运行即可
from PyPDF4 import PdfFileWriter, PdfFileReader def create_watermark(input_pdf, output, watermark): watermark_obj = PdfFileReader(watermark) pdf_reader = PdfFileReader(input_pdf) pdf_writer = PdfFileWriter() for i in range(pdf_reader.getNumPages()): page = pdf_reader.getPage(i) page.mergePage(watermark_obj.getPage(i)) pdf_writer.addPage(page) with open(output, 'wb') as out: pdf_writer.write(out) if __name__ == '__main__': create_watermark( input_pdf = r'C:\Users\Administrator\Desktop\PDF_demp.pdf', output = r'C:\Users\Administrator\Desktop\watermarked_pdf.pdf', watermark = r'C:\Users\Administrator\Desktop\watermark.pdf')
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